Ore-concentrator.



"E. DEISTER. ORE: OONGENTRATOR. APPLICATION I'ILIIDJAN-N, 1908.

WIN/58858:. W

I v l/VVQVTOR v W' I V Arron 5f Patented Nov. 12, 1912.

, E. DEISTER. ORE GONUENTRATOR. APELIOATION FILED JAN. 27, 1908.

Patented N0v.12,19 12.

2 SHEET -SHEET 2.

I ilflll'lwidlllllluw wuwv l WITNESSES:

ATTORNEY u TED STATES PATENT OFFICE.

- EMIL DEISTER, OF FORT WAYNE, INDIANA, ASSIGNOR TO THE DEISTER CONCEN- j TRATOR COMPANY, OF FORT WAYNE, INDIANA, A CORPORATION.

ORE-CONCENTRATOR.

Specification of Letters Patent.

Application filed January 27, 1908. Serial No. 412,761.

Patented Nov. 12, 1912.

,To all whom it may concern;

Be it known that}, Ernn Dnisrna, a citizen ofthe United States of America, and resident of'Fort Wayne, in the county of Allen and State of Indiana, have invented certain new and useful Improvements in Ore Concentrators, of which the following is a specification,

This invention relates to improvements in ore concentrators and the olqects thereof ,are: First, to provide means of applying the dressing water gently to that portion of the tables surface where final separation of the mineral from its gangue is effected; and second, to arrangethe rifiles of the table in such relation with the dressing'water feedboard as to effect final washing of mineral i at the .points of its discharge. I accomplish I these objects by the construction illustrated in the-accompanying drawings in which Figure 1 is a perspective vlew showing a concentrating table embodying the inventhe table on the line g y.

Similar numerals of reference indicate corresponding parts throughout "the several views and referring now to the same 1 is a concentrating table, 2 isits feed end, and 3 its tailingdischarge end. Upon the surface of the table is arranged a series of rifiles i which are parallel with one another and extend from the rear of the table to its forward edge 5,. thcalternate riffles extending entirely to said edge, and the intervenlng riffies terminating respectively at points suitably distant therefroml All of said riffies have off-sets 6 and 6 where they decrease suddenly in height at their intersecritiles tions with the dotted lines 2 and a and each rifile is slightly bent, at its intersection with the line 2', laterally toward the tailings discharge end of the table'; Occasional of said gas indicated at 7) are higher than the ri relying-adjacent thereto and are spaced so as to divide the surface of the table into riflled sections. Those portions of the riflles 7 which extend forward beyond the line 2, are uniform in their height with the similar portions of the adjacent riflies. Thus it will be observed that the tables surface from the line z -r earwardly is divided into riflied sections by the occasional high rillies, while ,that portion of its surface which lies forwardly beyond the line 2 is uniform throughout in respect to the height of the riffles, and owing to the offsets 6 and 6','the forward portion of the table presents a shallow riflled surface as compared with the rear portion.

Along the forward edge 5 of the table is secured a dressing water feed-board t3 which, from its outer side, slants slightly downward toward the table with its inner side meeting the edge 5 thereof, and at the juncture, the surface of the board 8 is flush with the surface of the table. The board 8 has a series of openings 9 along its inner edge which afford discharge passage-ways for mineral. Back of each of the openings 9 are secured projecting strips 10 which serve to prevent dressing water from passing directly from the board into said openings. A dressing water launder 11, having discharge slots 12 in its side, is suitably supported upon stands 13 with its discharge side overhanging the feed board 8, and said launder is adapted to discharge dressing water through its numerous slots 12 onto said fee-d board.

The table is mounted in connection with ,the driving mechanism 14 to be rcciprocated in line with "the riflles, and a feed box 15 is secured at the head of the table. The dri'ving mechanism and the feed box as well as the means of mounting the table and adjusting the table are each of any suitable conhtruction for their respective purposes asis well understood in the art.

In the operation of this invention, the machine is set in reciprocatin motion, and

gulp is fedr to the table throng its feed box.

he launder 11 is continuously supplied with dressing water from any suitable Source. The table is adjusted in longitudinal and transverse slants such as will cause the pulp to flow from the head of the table to the tailing discharge end, and during its 'passage thereover portion of the pulp the heavier or mineral stratifies upon the surface of the table and is carried between the riftles forwardly to the discharge edge 5. The high riflles 7 have the effect of flooding adjacent preceding rifiies and thereby afford pools ofcomparatively quiescent water in which settlement of mineral values and solids of the pulp is facilitated. The forward movement of the settled material is efiected y the differential reciprocating movement of the table imparted thereto by the driving mechanism and as the material moves forward beyond the offsets 6 where the rifiies are shallow, the overlying sands wash downward toward the foot or tailing end of the table, while the underlying mineral which lodges between the rifi'les and is held from further downward movement, continues its movement between the ritlles to the edge 5 of the table and becomes discharged through the openings 9. The dressing water falling onto the feed board 8 from the launder, flows therefrom gently onto the surface of the table at its edge 5 and washes the mineral as it passes to the openings 9, and thus freeing it of particles of gangue. This method of applying dressing water gently to the mineral at the time of its discharge from the table results beneficially in that the very fine particles of mineral are not disturbed and washed away as is the case where dressing water is applied directly to the mineral in falling jets.

Another feature in this invention is that the series of openings 9 provides for the discharge of mineral from the table commencing at the terminals of the first riflles and from thence on down to the foot of the table: Thus it will appear that during the passage of the ore matter across the table from its head to its foot it becomes impoverished of its contained values continually at the successive stages of separation because 'of the discharge of mineral through the openings as its separation from the gangue occurs.

s a convenient means of catching the mineral as itis discharged from the ta le, 21 launder 16 is secured along its forwarded below the openings 9 so as to receive the discharge therefrom.

Having described my invention what I claim as new and desire to secure by Letters Patent is 1. In an ore concentrator, a reciprocating table; a series of riflles on said table which alternately extend from the rear of the table completely to its mineral discharge edge, the other of saidriflles which intervene between the former. rifiles extending from the rear of table adapted to discharge the table to points suitably distant from its mineral discharge edge; a dressing water feed board arranged along the mineral discharge edge of the table, its inner edge beingparallel with the edge of the table and hav ng a series of discharge openings which register respectively with the riflies which extend to the edge of the table; and means for applying dressing Water to said feed board.

2. In an ore concentrator, a reciprocating mineral over its forward edge; a dressing water feed board secured to the table along its mineral discharge edge and having in its side adjacent said edge a series of discharge open ngs;

protecting strips. arranged at each of said openings to prevent dressing water from passing directly from the feed board into said openings; and means for applying dressing water to-the feed board.

3. In anore concentrator, a reciprocating table adapted to discharge concentrates at its forward edge; a series of riflles on the table extending from the rear end thereof to its concentrates discharge edge; a dressing water feed-hoard arranged along the concentrates discharge edge of the table in parallel relation therewith with its inner edge against the same and having a series of discharge openings in its inner edge, said openings registering respectively with the corresponding rifiles; and meansfor applying dressing water to said feed-board.

4. In an ore concentrator, a reciprocating table adapted to discharge concentrates from its forward edge; a dressing water feedboard extending along the concentrates discharge edge of the table in parallel relation therewith and having a series of dischar openings in its inner edge adjacent the table; and means for applying dressing water on the feed-board, the latter being adapted to discharge water from between its openings onto the adjacent surface of the table.

5. A differentially reciprocating table having concentrating rifiles extending from its head motion end toward its concentrates discharge end; alternate riflies extending to the concentrates discharge. end and the other riiiles terminating short of said end to form washing sections between. said alternate riflles, a concentrates discharge opening being provided at each washing section, a guard in proximity to each opening and means for flowing a guards and opening tions. I y

6. In an ore concentratona reciprocating table adapted to discharge concentrates at its forward edge; a series of rifiles on the table extending from the rear end thereof toward its concentrates discharge edge, occasional of said riflles being higher than onto the washing secwashing film past the those lying adjecent thereto} a dressing betweenits-openings onto the .edjeont su':-

' water feed-board extending along the con- 'face of the table. 10

centrates discharge edge of the table in par- In testimony whereof afiix my 'signstrre,

'alllel relation therewith and having a series 'in presenoe-oftwo witnesses.

, of openings in its inner edge at its juncture EMIL DEISTE h with the table; and means for applying Witnesses dnessingwater onto the feed-board, the let- WM. H. BEUSMAN,

ter being adapted-t0 discharge water from 1 \V. G. B RNS.

copies of this petentnlay be obtained for live ,cents each, by addressing the Commissioner of Pa vents,

Washington, D. O. 

